/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/heap-manipulation/dancing.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 15:40:02,795 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 15:40:02,797 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 15:40:02,830 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 15:40:02,831 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 15:40:02,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 15:40:02,841 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 15:40:02,844 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 15:40:02,847 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 15:40:02,850 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 15:40:02,850 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 15:40:02,852 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 15:40:02,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 15:40:02,855 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 15:40:02,858 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 15:40:02,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 15:40:02,862 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 15:40:02,864 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 15:40:02,865 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 15:40:02,873 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 15:40:02,875 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 15:40:02,876 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 15:40:02,877 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 15:40:02,878 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 15:40:02,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 15:40:02,890 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 15:40:02,890 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 15:40:02,896 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 15:40:02,896 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 15:40:02,897 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 15:40:02,897 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 15:40:02,901 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 15:40:02,902 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 15:40:02,903 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 15:40:02,904 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 15:40:02,904 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 15:40:02,904 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 15:40:02,904 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 15:40:02,905 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 15:40:02,905 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 15:40:02,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 15:40:02,909 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 15:40:02,950 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 15:40:02,950 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 15:40:02,953 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 15:40:02,953 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 15:40:02,953 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 15:40:02,954 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 15:40:02,954 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 15:40:02,954 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 15:40:02,954 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 15:40:02,955 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 15:40:02,956 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 15:40:02,956 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 15:40:02,956 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 15:40:02,957 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 15:40:02,957 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 15:40:02,957 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 15:40:02,957 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 15:40:02,957 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 15:40:02,958 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 15:40:02,958 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 15:40:02,958 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 15:40:02,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 15:40:02,959 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 15:40:02,959 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 15:40:02,959 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 15:40:02,959 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 15:40:02,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 15:40:02,960 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 15:40:02,960 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 15:40:02,960 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 15:40:03,234 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 15:40:03,247 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 15:40:03,251 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 15:40:03,253 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 15:40:03,254 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 15:40:03,254 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/dancing.i [2020-10-12 15:40:03,334 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c385baef9/e639d5bf80a740749e9962c62a009d42/FLAG7e653c9d5 [2020-10-12 15:40:03,867 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 15:40:03,868 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/heap-manipulation/dancing.i [2020-10-12 15:40:03,880 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c385baef9/e639d5bf80a740749e9962c62a009d42/FLAG7e653c9d5 [2020-10-12 15:40:04,215 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c385baef9/e639d5bf80a740749e9962c62a009d42 [2020-10-12 15:40:04,223 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 15:40:04,225 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 15:40:04,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 15:40:04,228 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 15:40:04,232 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 15:40:04,233 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:40:04" (1/1) ... [2020-10-12 15:40:04,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62278a50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:40:04, skipping insertion in model container [2020-10-12 15:40:04,237 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:40:04" (1/1) ... [2020-10-12 15:40:04,245 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 15:40:04,300 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 15:40:04,682 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:40:04,696 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 15:40:04,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:40:04,808 INFO L208 MainTranslator]: Completed translation [2020-10-12 15:40:04,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:40:04 WrapperNode [2020-10-12 15:40:04,810 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 15:40:04,810 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 15:40:04,811 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 15:40:04,811 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 15:40:04,826 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:40:04" (1/1) ... [2020-10-12 15:40:04,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:40:04" (1/1) ... [2020-10-12 15:40:04,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:40:04" (1/1) ... [2020-10-12 15:40:04,874 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:40:04" (1/1) ... [2020-10-12 15:40:04,908 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:40:04" (1/1) ... [2020-10-12 15:40:04,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:40:04" (1/1) ... [2020-10-12 15:40:04,923 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:40:04" (1/1) ... [2020-10-12 15:40:04,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 15:40:04,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 15:40:04,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 15:40:04,938 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 15:40:04,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:40:04" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 15:40:04,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 15:40:04,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 15:40:04,999 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 15:40:04,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-12 15:40:04,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-12 15:40:04,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-12 15:40:04,999 INFO L138 BoogieDeclarations]: Found implementation of procedure remove [2020-10-12 15:40:05,000 INFO L138 BoogieDeclarations]: Found implementation of procedure re_insert [2020-10-12 15:40:05,000 INFO L138 BoogieDeclarations]: Found implementation of procedure is_list_containing_x [2020-10-12 15:40:05,000 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 15:40:05,000 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 15:40:05,000 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 15:40:05,000 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 15:40:05,001 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 15:40:05,001 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-12 15:40:05,001 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-12 15:40:05,001 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-12 15:40:05,001 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-12 15:40:05,001 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-12 15:40:05,002 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-12 15:40:05,002 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-12 15:40:05,002 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-12 15:40:05,002 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-12 15:40:05,002 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-12 15:40:05,002 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-12 15:40:05,003 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-12 15:40:05,003 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-12 15:40:05,003 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-12 15:40:05,003 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-12 15:40:05,003 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-12 15:40:05,003 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-12 15:40:05,003 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-12 15:40:05,004 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-12 15:40:05,004 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-12 15:40:05,004 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-12 15:40:05,004 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-12 15:40:05,004 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-12 15:40:05,004 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-12 15:40:05,005 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-12 15:40:05,005 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-12 15:40:05,005 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-12 15:40:05,005 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-12 15:40:05,005 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-12 15:40:05,005 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-12 15:40:05,006 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-12 15:40:05,006 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-12 15:40:05,006 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-12 15:40:05,006 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-12 15:40:05,006 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-12 15:40:05,006 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-12 15:40:05,006 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-12 15:40:05,007 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-12 15:40:05,007 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-12 15:40:05,007 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-12 15:40:05,007 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-12 15:40:05,007 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-12 15:40:05,007 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-12 15:40:05,008 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-12 15:40:05,008 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-12 15:40:05,008 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-12 15:40:05,008 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-12 15:40:05,008 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-12 15:40:05,008 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-12 15:40:05,008 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-12 15:40:05,009 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-12 15:40:05,009 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-12 15:40:05,009 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-12 15:40:05,009 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-12 15:40:05,009 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-12 15:40:05,009 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-12 15:40:05,009 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-12 15:40:05,010 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-12 15:40:05,010 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-12 15:40:05,010 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-12 15:40:05,010 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-12 15:40:05,010 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-12 15:40:05,010 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-12 15:40:05,011 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 15:40:05,011 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-12 15:40:05,011 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-12 15:40:05,011 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-12 15:40:05,011 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-12 15:40:05,011 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-12 15:40:05,011 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-12 15:40:05,012 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-12 15:40:05,012 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-12 15:40:05,012 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-12 15:40:05,012 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-12 15:40:05,012 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-12 15:40:05,012 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-12 15:40:05,013 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-12 15:40:05,013 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-12 15:40:05,013 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-12 15:40:05,013 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-12 15:40:05,013 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-12 15:40:05,013 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-12 15:40:05,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-12 15:40:05,013 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-12 15:40:05,014 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-12 15:40:05,014 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-12 15:40:05,014 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-12 15:40:05,014 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-12 15:40:05,014 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-12 15:40:05,014 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-12 15:40:05,014 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-12 15:40:05,015 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-12 15:40:05,015 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-12 15:40:05,015 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-12 15:40:05,015 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-12 15:40:05,015 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-12 15:40:05,015 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-12 15:40:05,015 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-12 15:40:05,015 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-12 15:40:05,016 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-12 15:40:05,016 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-12 15:40:05,016 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-12 15:40:05,016 INFO L130 BoogieDeclarations]: Found specification of procedure remove [2020-10-12 15:40:05,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-12 15:40:05,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-12 15:40:05,017 INFO L130 BoogieDeclarations]: Found specification of procedure re_insert [2020-10-12 15:40:05,017 INFO L130 BoogieDeclarations]: Found specification of procedure is_list_containing_x [2020-10-12 15:40:05,017 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 15:40:05,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 15:40:05,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-12 15:40:05,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 15:40:05,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 15:40:05,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 15:40:05,555 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 15:40:05,555 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 15:40:05,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:40:05 BoogieIcfgContainer [2020-10-12 15:40:05,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 15:40:05,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 15:40:05,564 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 15:40:05,569 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 15:40:05,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 03:40:04" (1/3) ... [2020-10-12 15:40:05,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fa30a6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:40:05, skipping insertion in model container [2020-10-12 15:40:05,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:40:04" (2/3) ... [2020-10-12 15:40:05,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fa30a6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:40:05, skipping insertion in model container [2020-10-12 15:40:05,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:40:05" (3/3) ... [2020-10-12 15:40:05,572 INFO L109 eAbstractionObserver]: Analyzing ICFG dancing.i [2020-10-12 15:40:05,580 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 15:40:05,587 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 15:40:05,600 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 15:40:05,624 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 15:40:05,624 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 15:40:05,625 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 15:40:05,625 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 15:40:05,625 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 15:40:05,625 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 15:40:05,625 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 15:40:05,626 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 15:40:05,643 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2020-10-12 15:40:05,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-12 15:40:05,650 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:40:05,651 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:40:05,652 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:40:05,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:40:05,658 INFO L82 PathProgramCache]: Analyzing trace with hash 1723588064, now seen corresponding path program 1 times [2020-10-12 15:40:05,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:40:05,668 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [222662040] [2020-10-12 15:40:05,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:40:05,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:05,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:05,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:05,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:06,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:06,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:06,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:07,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:07,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-12 15:40:07,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 15:40:07,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1385 [2020-10-12 15:40:07,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:07,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 15:40:07,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-12 15:40:07,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-12 15:40:07,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 15:40:07,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:40:07,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:07,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:07,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:07,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:40:07,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:07,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:40:07,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:07,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:40:07,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:07,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:40:07,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:07,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-12 15:40:07,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:07,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:07,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:07,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:40:07,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:07,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 15:40:07,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:07,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:40:07,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:07,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 15:40:07,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:07,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 15:40:07,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:07,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:07,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:07,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:07,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:40:07,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 15:40:07,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:40:07,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:07,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:40:07,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:07,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 15:40:07,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:07,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 15:40:07,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:07,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:07,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:07,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 15:40:07,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:07,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 15:40:07,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:07,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:40:07,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:07,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 15:40:07,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:07,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:40:07,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [222662040] [2020-10-12 15:40:07,397 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:40:07,397 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 15:40:07,398 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188372371] [2020-10-12 15:40:07,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 15:40:07,403 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:40:07,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 15:40:07,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-10-12 15:40:07,421 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 10 states. [2020-10-12 15:40:08,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:40:08,177 INFO L93 Difference]: Finished difference Result 139 states and 199 transitions. [2020-10-12 15:40:08,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 15:40:08,180 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 31 [2020-10-12 15:40:08,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:40:08,194 INFO L225 Difference]: With dead ends: 139 [2020-10-12 15:40:08,194 INFO L226 Difference]: Without dead ends: 86 [2020-10-12 15:40:08,199 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2020-10-12 15:40:08,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-10-12 15:40:08,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 75. [2020-10-12 15:40:08,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-10-12 15:40:08,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 101 transitions. [2020-10-12 15:40:08,263 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 101 transitions. Word has length 31 [2020-10-12 15:40:08,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:40:08,263 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 101 transitions. [2020-10-12 15:40:08,263 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 15:40:08,264 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 101 transitions. [2020-10-12 15:40:08,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-12 15:40:08,267 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:40:08,268 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:40:08,268 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 15:40:08,269 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:40:08,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:40:08,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1022363950, now seen corresponding path program 1 times [2020-10-12 15:40:08,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:40:08,270 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2029323421] [2020-10-12 15:40:08,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:40:08,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:08,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:08,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:08,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:08,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:08,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:09,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:13,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:13,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-12 15:40:13,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 15:40:13,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-12 15:40:13,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:13,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 15:40:13,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 15:40:13,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 15:40:13,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:13,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:40:13,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:13,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:13,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:13,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:40:13,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:13,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:40:13,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:13,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:40:13,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:13,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:40:13,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:13,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 15:40:13,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:13,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:13,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:13,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 15:40:13,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:13,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 15:40:13,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:13,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:40:13,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:13,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 15:40:13,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:13,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 15:40:13,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:13,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:13,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:13,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:40:13,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:13,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 15:40:13,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:13,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:40:13,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:13,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 15:40:13,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:13,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-12 15:40:13,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:13,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:13,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:13,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 15:40:13,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:13,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-12 15:40:13,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:13,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:40:13,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:40:13,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 15:40:13,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:13,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-12 15:40:13,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:13,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:13,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:13,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:40:13,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:13,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:40:13,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:13,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:40:13,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 15:40:13,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:40:13,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:13,793 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-12 15:40:13,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2029323421] [2020-10-12 15:40:13,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:40:13,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-12 15:40:13,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206557559] [2020-10-12 15:40:13,799 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 15:40:13,799 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:40:13,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 15:40:13,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:40:13,800 INFO L87 Difference]: Start difference. First operand 75 states and 101 transitions. Second operand 12 states. [2020-10-12 15:40:15,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:40:15,461 INFO L93 Difference]: Finished difference Result 225 states and 358 transitions. [2020-10-12 15:40:15,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 15:40:15,462 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 41 [2020-10-12 15:40:15,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:40:15,467 INFO L225 Difference]: With dead ends: 225 [2020-10-12 15:40:15,467 INFO L226 Difference]: Without dead ends: 180 [2020-10-12 15:40:15,469 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2020-10-12 15:40:15,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-10-12 15:40:15,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 91. [2020-10-12 15:40:15,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-10-12 15:40:15,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 130 transitions. [2020-10-12 15:40:15,515 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 130 transitions. Word has length 41 [2020-10-12 15:40:15,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:40:15,516 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 130 transitions. [2020-10-12 15:40:15,516 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 15:40:15,516 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 130 transitions. [2020-10-12 15:40:15,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-12 15:40:15,519 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:40:15,519 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:40:15,519 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 15:40:15,520 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:40:15,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:40:15,520 INFO L82 PathProgramCache]: Analyzing trace with hash -565983952, now seen corresponding path program 1 times [2020-10-12 15:40:15,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:40:15,521 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [989900660] [2020-10-12 15:40:15,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:40:15,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:15,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:15,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:15,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:15,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:15,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:15,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:16,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:20,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:20,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-12 15:40:20,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 15:40:20,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 15:40:20,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:20,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 15:40:20,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 15:40:20,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-12 15:40:20,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 15:40:20,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:40:20,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:20,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:20,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:20,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:40:20,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:20,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:40:20,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:20,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:40:20,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:20,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:40:20,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:20,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 15:40:20,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:20,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:20,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:20,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 15:40:20,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:20,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 15:40:20,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:20,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:40:20,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:20,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 15:40:20,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:20,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 15:40:20,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:20,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:20,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:20,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:40:20,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:20,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:40:20,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:20,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:40:20,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:20,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 15:40:20,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:20,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-12 15:40:20,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:20,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:20,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:20,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 15:40:20,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:20,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 15:40:20,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:20,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 15:40:20,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:40:20,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 15:40:20,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:20,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-12 15:40:20,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:20,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:20,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:20,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:40:20,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:20,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:40:20,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:20,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:40:20,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 15:40:20,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 15:40:20,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:40:21,008 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-12 15:40:21,008 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [989900660] [2020-10-12 15:40:21,009 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:40:21,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 15:40:21,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952218356] [2020-10-12 15:40:21,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 15:40:21,010 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:40:21,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 15:40:21,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-10-12 15:40:21,011 INFO L87 Difference]: Start difference. First operand 91 states and 130 transitions. Second operand 13 states. [2020-10-12 15:40:22,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:40:22,612 INFO L93 Difference]: Finished difference Result 176 states and 249 transitions. [2020-10-12 15:40:22,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 15:40:22,613 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 41 [2020-10-12 15:40:22,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:40:22,615 INFO L225 Difference]: With dead ends: 176 [2020-10-12 15:40:22,615 INFO L226 Difference]: Without dead ends: 124 [2020-10-12 15:40:22,617 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2020-10-12 15:40:22,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-12 15:40:22,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 91. [2020-10-12 15:40:22,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-10-12 15:40:22,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 126 transitions. [2020-10-12 15:40:22,639 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 126 transitions. Word has length 41 [2020-10-12 15:40:22,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:40:22,640 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 126 transitions. [2020-10-12 15:40:22,640 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 15:40:22,640 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 126 transitions. [2020-10-12 15:40:22,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-12 15:40:22,642 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:40:22,642 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:40:22,642 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 15:40:22,643 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:40:22,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:40:22,643 INFO L82 PathProgramCache]: Analyzing trace with hash -1701890725, now seen corresponding path program 1 times [2020-10-12 15:40:22,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:40:22,644 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [422565751] [2020-10-12 15:40:22,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:40:22,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:22,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:22,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:22,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:25,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:25,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-12 15:40:25,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:40:25,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2794 [2020-10-12 15:40:25,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:25,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:40:25,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 15:40:25,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 15:40:25,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:25,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:40:25,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:25,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:25,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:25,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:40:25,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:25,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:40:25,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:25,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:40:25,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:25,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:40:25,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:25,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 15:40:25,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:25,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:25,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:25,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 15:40:25,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:25,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 15:40:25,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:25,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:40:25,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 15:40:25,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 15:40:25,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:25,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 15:40:25,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:25,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:25,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:25,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:40:25,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:25,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 15:40:25,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:25,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:40:25,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 15:40:25,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:40:25,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:25,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-12 15:40:25,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:25,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:25,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:25,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 15:40:25,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:25,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:40:25,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:25,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:40:25,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 15:40:25,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:40:25,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:25,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-12 15:40:25,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:25,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:25,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:25,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 15:40:25,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:25,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:40:25,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:25,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:40:25,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 15:40:25,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:40:25,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:25,613 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-12 15:40:25,613 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [422565751] [2020-10-12 15:40:25,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 15:40:25,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 15:40:25,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16047778] [2020-10-12 15:40:25,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 15:40:25,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:40:25,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 15:40:25,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-12 15:40:25,616 INFO L87 Difference]: Start difference. First operand 91 states and 126 transitions. Second operand 9 states. [2020-10-12 15:40:26,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:40:26,252 INFO L93 Difference]: Finished difference Result 170 states and 237 transitions. [2020-10-12 15:40:26,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 15:40:26,253 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 42 [2020-10-12 15:40:26,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:40:26,255 INFO L225 Difference]: With dead ends: 170 [2020-10-12 15:40:26,255 INFO L226 Difference]: Without dead ends: 113 [2020-10-12 15:40:26,256 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2020-10-12 15:40:26,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-10-12 15:40:26,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 106. [2020-10-12 15:40:26,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-12 15:40:26,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 152 transitions. [2020-10-12 15:40:26,280 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 152 transitions. Word has length 42 [2020-10-12 15:40:26,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:40:26,280 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 152 transitions. [2020-10-12 15:40:26,280 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 15:40:26,281 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 152 transitions. [2020-10-12 15:40:26,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-12 15:40:26,283 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:40:26,283 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:40:26,283 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 15:40:26,283 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:40:26,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:40:26,284 INFO L82 PathProgramCache]: Analyzing trace with hash -682545499, now seen corresponding path program 1 times [2020-10-12 15:40:26,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:40:26,284 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1744393507] [2020-10-12 15:40:26,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:40:26,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:26,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:26,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:26,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:28,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:28,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-12 15:40:28,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:40:28,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2128 [2020-10-12 15:40:28,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:28,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 15:40:28,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-12 15:40:28,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 15:40:28,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:28,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:40:28,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:28,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:28,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:28,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:40:28,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:28,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 15:40:28,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:28,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:40:28,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:28,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:40:28,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:28,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-12 15:40:28,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:28,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:28,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:28,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:40:28,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:28,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 15:40:28,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:28,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:40:28,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:28,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:40:28,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:28,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 15:40:28,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:28,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:28,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:28,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:40:28,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:28,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 15:40:28,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:28,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:40:28,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:28,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:40:28,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:28,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 15:40:28,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:28,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:28,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:28,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 15:40:28,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:28,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 15:40:28,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:28,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 15:40:28,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:28,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 15:40:28,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:28,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 15:40:28,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:28,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:28,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:28,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:40:28,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:28,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:40:28,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:28,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:40:28,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:28,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 15:40:28,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:28,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-12 15:40:28,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:28,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:28,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:28,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 15:40:28,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:28,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 15:40:28,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:28,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:40:28,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:40:28,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 15:40:28,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:40:28,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-12 15:40:28,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:28,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:28,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:28,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:40:28,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:28,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 15:40:28,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:28,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:40:28,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 15:40:28,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:40:28,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:28,629 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 15:40:28,629 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1744393507] [2020-10-12 15:40:28,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:40:28,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 15:40:28,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691278071] [2020-10-12 15:40:28,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 15:40:28,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:40:28,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 15:40:28,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-12 15:40:28,631 INFO L87 Difference]: Start difference. First operand 106 states and 152 transitions. Second operand 9 states. [2020-10-12 15:40:29,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:40:29,202 INFO L93 Difference]: Finished difference Result 143 states and 201 transitions. [2020-10-12 15:40:29,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 15:40:29,203 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 49 [2020-10-12 15:40:29,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:40:29,205 INFO L225 Difference]: With dead ends: 143 [2020-10-12 15:40:29,207 INFO L226 Difference]: Without dead ends: 117 [2020-10-12 15:40:29,209 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2020-10-12 15:40:29,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-10-12 15:40:29,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 115. [2020-10-12 15:40:29,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-10-12 15:40:29,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 165 transitions. [2020-10-12 15:40:29,247 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 165 transitions. Word has length 49 [2020-10-12 15:40:29,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:40:29,247 INFO L479 AbstractCegarLoop]: Abstraction has 115 states and 165 transitions. [2020-10-12 15:40:29,248 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 15:40:29,248 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 165 transitions. [2020-10-12 15:40:29,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-12 15:40:29,251 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:40:29,252 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:40:29,252 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 15:40:29,252 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:40:29,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:40:29,252 INFO L82 PathProgramCache]: Analyzing trace with hash -1693662749, now seen corresponding path program 1 times [2020-10-12 15:40:29,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:40:29,253 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1648258536] [2020-10-12 15:40:29,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:40:29,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:29,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:29,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:29,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:30,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:30,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-12 15:40:30,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:40:30,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1349 [2020-10-12 15:40:30,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:30,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 15:40:30,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-12 15:40:30,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-12 15:40:30,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:30,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:40:30,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:30,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:30,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:30,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:40:30,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:30,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:40:30,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:30,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:40:30,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:30,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:40:30,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:30,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-12 15:40:30,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:30,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:30,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:30,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:40:30,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:30,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 15:40:30,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:30,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:40:30,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:30,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:40:30,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:30,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 15:40:30,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:30,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:30,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:30,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:40:30,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:30,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:40:30,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:30,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:40:30,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:30,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:40:30,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:30,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 15:40:30,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:30,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:30,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:30,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 15:40:30,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:30,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 15:40:30,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:30,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:40:30,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:30,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 15:40:30,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:40:30,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 15:40:30,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:30,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:30,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:30,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:40:30,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:30,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:40:30,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:30,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:40:30,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:30,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 15:40:30,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:40:30,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-12 15:40:30,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:30,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:30,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:30,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 15:40:30,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:30,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 15:40:30,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:30,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 15:40:30,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:40:30,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 15:40:30,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:40:30,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-12 15:40:30,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:30,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:30,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:30,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:40:30,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:30,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:40:30,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:30,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:40:30,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 15:40:30,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:40:30,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:40:30,919 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 15:40:30,920 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1648258536] [2020-10-12 15:40:30,921 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:40:30,921 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 15:40:30,922 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073448] [2020-10-12 15:40:30,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 15:40:30,923 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:40:30,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 15:40:30,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-10-12 15:40:30,924 INFO L87 Difference]: Start difference. First operand 115 states and 165 transitions. Second operand 11 states. [2020-10-12 15:40:31,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:40:31,918 INFO L93 Difference]: Finished difference Result 157 states and 228 transitions. [2020-10-12 15:40:31,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-12 15:40:31,919 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 49 [2020-10-12 15:40:31,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:40:31,922 INFO L225 Difference]: With dead ends: 157 [2020-10-12 15:40:31,922 INFO L226 Difference]: Without dead ends: 135 [2020-10-12 15:40:31,924 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=107, Invalid=399, Unknown=0, NotChecked=0, Total=506 [2020-10-12 15:40:31,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-10-12 15:40:31,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 130. [2020-10-12 15:40:31,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-12 15:40:31,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 189 transitions. [2020-10-12 15:40:31,959 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 189 transitions. Word has length 49 [2020-10-12 15:40:31,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:40:31,959 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 189 transitions. [2020-10-12 15:40:31,959 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 15:40:31,960 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 189 transitions. [2020-10-12 15:40:31,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-12 15:40:31,963 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:40:31,964 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:40:31,964 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 15:40:31,964 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:40:31,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:40:31,964 INFO L82 PathProgramCache]: Analyzing trace with hash -1435497311, now seen corresponding path program 1 times [2020-10-12 15:40:31,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:40:31,965 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [794660244] [2020-10-12 15:40:31,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:40:31,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:31,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:32,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:32,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-12 15:40:32,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:32,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-12 15:40:32,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:32,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:40:32,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-12 15:40:32,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 15:40:32,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:32,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:40:32,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:32,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:32,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:32,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:40:32,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:32,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:40:32,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:32,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:40:32,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:32,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:40:32,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:40:32,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-12 15:40:32,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:32,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:32,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:32,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:40:32,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:32,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 15:40:32,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:32,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:40:32,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:32,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:40:32,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:40:32,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 15:40:32,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:32,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:32,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:32,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:40:32,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:32,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 15:40:32,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:32,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:40:32,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:32,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:40:32,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:40:32,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 15:40:32,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:32,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:32,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:32,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 15:40:32,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:32,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:40:32,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:32,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:40:32,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:32,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:40:32,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:32,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 15:40:32,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:32,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:32,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:32,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:40:32,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:32,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 15:40:32,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:32,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:40:32,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:32,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:40:32,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:32,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-12 15:40:32,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:32,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:32,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:32,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 15:40:32,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:32,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:40:32,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:32,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:40:32,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:32,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:40:32,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:40:32,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-12 15:40:32,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:32,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:32,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:32,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:40:32,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:32,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 15:40:32,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:32,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 15:40:32,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:32,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 15:40:32,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:40:32,191 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-12 15:40:32,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [794660244] [2020-10-12 15:40:32,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:40:32,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-12 15:40:32,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605161055] [2020-10-12 15:40:32,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 15:40:32,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:40:32,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 15:40:32,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-12 15:40:32,197 INFO L87 Difference]: Start difference. First operand 130 states and 189 transitions. Second operand 8 states. [2020-10-12 15:40:32,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:40:32,624 INFO L93 Difference]: Finished difference Result 137 states and 195 transitions. [2020-10-12 15:40:32,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 15:40:32,625 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2020-10-12 15:40:32,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:40:32,627 INFO L225 Difference]: With dead ends: 137 [2020-10-12 15:40:32,627 INFO L226 Difference]: Without dead ends: 102 [2020-10-12 15:40:32,628 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-10-12 15:40:32,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-10-12 15:40:32,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 100. [2020-10-12 15:40:32,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-10-12 15:40:32,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 137 transitions. [2020-10-12 15:40:32,663 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 137 transitions. Word has length 49 [2020-10-12 15:40:32,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:40:32,664 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 137 transitions. [2020-10-12 15:40:32,664 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 15:40:32,664 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 137 transitions. [2020-10-12 15:40:32,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-12 15:40:32,666 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:40:32,666 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:40:32,666 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 15:40:32,666 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:40:32,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:40:32,667 INFO L82 PathProgramCache]: Analyzing trace with hash 1576094600, now seen corresponding path program 1 times [2020-10-12 15:40:32,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:40:32,668 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2005686597] [2020-10-12 15:40:32,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:40:32,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:32,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:32,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:32,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-12 15:40:32,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:32,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-12 15:40:32,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:32,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:40:32,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-12 15:40:32,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 15:40:32,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:32,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:40:32,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:32,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:32,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:32,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:40:32,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:32,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 15:40:32,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:32,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:40:32,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:32,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:40:32,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:32,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-12 15:40:32,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:32,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:32,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:32,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 15:40:32,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:32,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:40:32,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:32,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:40:32,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:32,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:40:32,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:32,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 15:40:32,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:32,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:32,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:32,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:40:32,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:32,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 15:40:32,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:32,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:40:32,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:32,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:40:32,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:32,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-12 15:40:32,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:32,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:32,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:32,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:40:32,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:32,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 15:40:32,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:32,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:40:32,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:32,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:40:32,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:32,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-12 15:40:32,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:32,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:32,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:32,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 15:40:32,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:32,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:40:32,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:32,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:40:32,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:32,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:40:32,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:32,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 15:40:32,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:32,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:32,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:32,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 15:40:32,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:32,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 15:40:32,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:32,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 15:40:32,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:32,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 15:40:32,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:32,925 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-12 15:40:32,926 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2005686597] [2020-10-12 15:40:32,926 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:40:32,926 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 15:40:32,926 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503736339] [2020-10-12 15:40:32,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 15:40:32,927 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:40:32,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 15:40:32,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-12 15:40:32,928 INFO L87 Difference]: Start difference. First operand 100 states and 137 transitions. Second operand 9 states. [2020-10-12 15:40:33,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:40:33,372 INFO L93 Difference]: Finished difference Result 115 states and 153 transitions. [2020-10-12 15:40:33,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 15:40:33,373 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 48 [2020-10-12 15:40:33,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:40:33,376 INFO L225 Difference]: With dead ends: 115 [2020-10-12 15:40:33,376 INFO L226 Difference]: Without dead ends: 113 [2020-10-12 15:40:33,377 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2020-10-12 15:40:33,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-10-12 15:40:33,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 108. [2020-10-12 15:40:33,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-12 15:40:33,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 146 transitions. [2020-10-12 15:40:33,397 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 146 transitions. Word has length 48 [2020-10-12 15:40:33,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:40:33,398 INFO L479 AbstractCegarLoop]: Abstraction has 108 states and 146 transitions. [2020-10-12 15:40:33,398 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 15:40:33,398 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 146 transitions. [2020-10-12 15:40:33,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-12 15:40:33,400 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:40:33,400 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:40:33,400 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 15:40:33,401 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:40:33,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:40:33,401 INFO L82 PathProgramCache]: Analyzing trace with hash -349225473, now seen corresponding path program 1 times [2020-10-12 15:40:33,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:40:33,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1370390513] [2020-10-12 15:40:33,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:40:33,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:33,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:33,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:33,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:34,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:34,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:34,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:35,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:36,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:36,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:36,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:36,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:38,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:38,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:38,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 15:40:38,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-10-12 15:40:38,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-12 15:40:38,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:38,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-12 15:40:38,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 15:40:38,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-12 15:40:38,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:39,073 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 64 [2020-10-12 15:40:39,413 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 61 [2020-10-12 15:40:40,276 WARN L193 SmtUtils]: Spent 833.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 100 [2020-10-12 15:40:42,825 WARN L193 SmtUtils]: Spent 2.44 s on a formula simplification. DAG size of input: 397 DAG size of output: 121 [2020-10-12 15:40:42,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:40:42,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:42,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:42,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:42,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:40:42,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:42,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:40:42,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:42,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:40:42,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:42,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:40:42,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:42,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 15:40:42,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:42,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:43,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:43,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 15:40:43,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:43,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-12 15:40:43,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:43,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:40:43,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:43,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 15:40:43,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:43,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-12 15:40:43,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:43,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:43,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:43,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:40:43,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:43,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:40:43,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:43,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:40:43,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:43,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 15:40:43,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:40:43,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-12 15:40:43,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:43,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:43,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:43,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:40:43,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:43,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 15:40:43,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:43,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:40:43,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:40:43,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 15:40:43,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:40:43,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-12 15:40:43,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:40:43,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:40:43,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:40:43,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 15:40:43,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:40:43,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-10-12 15:40:43,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:40:43,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 15:40:43,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:40:43,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 15:40:43,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0